paradox,
Your post 38836 is excellent, in that you appreciate that you didn't excercise money management as well as you might have done.
I lost heavily on BLZ a few years ago, after having most of my portfolio in just that stock, and was forced to admit to myself exactly what you have posted above, and it helped me to become a better investor.
I would advocate regular drip feeding into the market and buying small initial stakes that can be added to if they prove to be prosperous, and cutting out some deadwood to do it, so as not to have too big a holding in any one stock.